Addind PIE support in FreeBSD ports/bsd.port.mk

bsd.port.mk

Index: Mk/bsd.port.mk
===================================================================
--- Mk/bsd.port.mk      (revision 389737)
+++ Mk/bsd.port.mk      (working copy)
@@ -322,6 +322,8 @@
 #
 # WITH_DEBUG_PORTS             - A list of origins for which WITH_DEBUG will be set
 #
+# WITHOUT_PIE           - Do not build with PIE for full ASLR.
+#
 # WITHOUT_SSP  - Disable SSP.
 #
 # SSP_CFLAGS   - Defaults to -fstack-protector. This value
@@ -1621,7 +1623,13 @@
 .endif
 
 # XXX PIE support to be added here
+.if defined(WITHOUT_PIE)
 MAKE_ENV+=     NO_PIE=yes
+.else
+CFLAGS+=       -fPIE
+CXXFLAGS+=     -fPIE
+LDFLAGS+=      -pie
+.endif
 
 .if defined(NOPORTDOCS)
 PLIST_SUB+=            PORTDOCS="@comment "